Improved bush-hammer



UNITED STATES PATENT OEETGE.

ALBERT WHEELER, OF GLOUCESTER, MASSACHUSETTS.

IMPROVED BUSH-HAMMER.

Specification forming part of Letters Patent No. 59,491, dated November 6, 1866.

To all whom it may concern f Beit known that I, ALBERT WHEELER, of Gloucester, in the county of Essex and State of Massachusetts, have invented a new and useful Improvement in Bush-Hammers 5 and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had tothe accompanying drawings, forming` part of this specification, in which- Figure l is a longitudinal section taken through the line x x, Fig. 2. Fig. 2 is an inside view ot' one of the parts oi' the body of the hammer. Fig. 3 is an inside view of the other part of the body of the hammer. Fig. ai. is a longitudinal section taken through the line y y, Fig. 2.

Similar letters of reference indicate like parts.

My invention has forits object to furnish an improved bush-hammer for dressing` granite, Jfrom which the cutters may be readily removed for sharpening or for replacing them with a greater orless number, according to the tineness of the work to be done; and it consists of a hammer constructed and. arranged as hereinafter more fully set forth.

A and B are the parts or halves ofthe body of the hammer, and they are exactly alike, each being provided with a shoulder, al and bl, which, in connection with the half-round pro` jections a2 and b2, form the base for the support oi' the cutters G and D. These projections extend laterally beyond the shoulders al and bl, and enter holes or cavities a3 and b3, formed in the other part of the body of the hammer, so as to give a firmer support to the cutters C and D, as shown in Fig. 4E. For convenience in putting the cutters in place and keeping their edges at the same height, they may be strung upon pills, the ends ot' which enter holes formed in the parts A and B for their reception, as seen in Fig. 1.

The two parts A and B ot' the body of the hammer are held together by bolts and nuts E, clamping,` the cutters G and D between the jaws of the said parts, as seen in Fig. l. Slugs F should be provided for iilling` up the space between the cutters and the jaws of the parts A and B, when cutters less in number or thinner have been used. I make the body of the hammer of malleable cast-iron, the bolts and nuts of the best Swedish iron, and the half-round projections a2 b2 on the shoulders al bl of cast-steel, though this is not essential, the object being to make the different parts of the hammer of such materials as. will stand y the work.

I claim as new and desire to secure by Letters Patent-- The shouldered plates AB, with the cavities c3 and b3, in combination with the projections a2 b2, as described, and with suitable cutters, and operatingI in the manner and for the purpose herein described.

ALBERT WHEELER.

Witnesses:

MICHAEL DULEY, J osEUi!L TUCKER, J r. 

